大约有 47,000 项符合查询结果(耗时:0.0500秒) [XML]

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How to create a date and time picker in Android? [closed]

.... This Date object contains // the date and time that the user has selected. } @Override public void onDateTimeCancel() { // Overriding onDateTimeCancel() is optional. } }; Then you create and show the dialog: new SlideDateTimePicker.Builder(getSupportFragment...
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Is there a good reason to use upper case for SQL keywords? [closed]

...re highlighted, not the entire query. His second example would look like: SELECT name, id, xtype, uid, info, status, base_schema_ver, replinfo, parent_obj, crdate, ftcatid, schema_ver, stats_schema_ver, type, userstat, sysstat, indexdel, refdate, version, deltrig, instrig, updtrig, seltrig, cat...
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The backend version is not supported to design database diagrams or tables

...se the version designed for your database version. You can use the command select @@version to check which version of sql server you are actually using. This version is reported in a way that is easier to interpret than that shown in the Help About in SSMS. Using a newer version of SSMS than your...
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How to catch SQLServer timeout exceptions

...= sql.CreateCommand(); cmd.CommandText = "DECLARE @i int WHILE EXISTS (SELECT 1 from sysobjects) BEGIN SELECT @i = 1 END"; cmd.ExecuteNonQuery(); // This line will timeout. cmd.Dispose(); sql.Close(); } catch (SqlException ex) { if (ex.Number == -2) { Console.WriteLine (...
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What does the * * CSS selector do?

... Just like any other time you put two selectors one after another (for example li a), you get the descendant combinator. So * * is any element that is a descendant of any other element — in other words, any element that isn't the root element of the whole docum...
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How to quickly edit values in table in SQL Server Management Studio?

... Go to Tools > Options. In the tree on the left, select SQL Server Object Explorer. Set the option "Value for Edit Top Rows command" to 0. It'll now allow you to view and edit the entire table from the context menu. ...
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How can I return an empty IEnumerable?

...rExists) yield break; foreach(var descendant in doc.Descendants("user").Select(user => new Friend { ID = user.Element("id").Value, Name = user.Element("name").Value, URL = user.Element("url").Value, Photo = user.Element("photo").Value })) { yield r...
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How to configure PostgreSQL to accept all incoming connections

...s you have to reload the configuration. One way to do this is execute this SELECT as a superuser. SELECT pg_reload_conf(); share | improve this answer | follow ...
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Really Cheap Command-Line Option Parsing in Ruby

...y chairs are in the classroom", :default => 1 p.option :room_number, "select room number", :default => 2, :value_in_set => [1,2,3,4] end.process! Calling the script with -h or --help will print Usage: micro-optparse-example [options] -v, --[no-]verbose turn on verbose...
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Why doesn't Dictionary have AddRange?

...ined = dict1.Union(dict2) .GroupBy(kvp => kvp.Key) .Select(grp => grp.First()) .ToDictionary(kvp => kvp.Key, kvp => kvp.Value); The main trick when combining dictionaries is dealing with the duplicate keys. In the code above it's the part .Select(grp => g...